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In this undated image provided by Charity: Water, Scott Harrison talks with school children as he visits a school water project in India. His organization has funded nearly 7,000 clean water projects in some of the poorest areas of the world. Harrison wanted to add sensors to the wells to give donors more assurances about the projects. But raising millions of dollars for the innovation was a problem. Google stepped in with major funding to create and install sensors on 4,000 wells across Africa that will send back real-time data on the water flow. Experts say the new annual grants are a part of a growing trend in venture philanthropy from donors who see technology as an instrument for social change. (AP Photo/Charity Water)
/ AP